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Terrestrial Laser Scanning (TLS) Instrumentation

UNAVCO's TLS instrument pool consists of the instruments below. Models have different attributes in terms of measurement range, sample rate, laser wavelength, laser spot size, physical size, weight, and power efficiency. All systems are time-of-flight scanners. In addition to the scanners themselves ancillary equipment deployed with the scanners include digital cameras for integrated imagery acquisition, field computers, targets for scan registration, power sources, tripods, transport cases, and dual frequency and RTK GPS receivers. The TLS systems were acquired under funding to UNAVCO from the National Science Foundation Division of Earth Sciences (EAR) and Division of Polar Programs (PLR).

Riegl VZ-2000 Riegl VZ-2000 The VZ-2000 has a similar form factor, weight, and resolution to the VZ-400 and VZ-1000, but has an increased range of up to 2,000 m and an effective scan rate of up to 400,000 measurements per second.
Riegl VZ-1000 Riegl VZ-1000 The VZ-1000 has a similar form factor, weight, and scan rate and resolution to the VZ-400, but has an increased range of up to 1,400 m. This instrument also features full waveform data capture, enabling additional data processing and analysis possibilities.
Riegl VZ-400 Riegl VZ-400 The VZ-400 is a versatile scanner that is well suited to a wide range of research applications. It is currently the workhorse of the UNAVCO TLS pool. The VZ-400 features a moderate range (up to 600 m), very fast scan rate, small size, and low weight. The VZ-400 records multiple returns through on-board waveform analysis.
Riegl LMS-Z620 Riegl LMS-Z620 The Z620 is a robust, long-range scanner (up to ~2 km) with fast scan rate. Common applications are projects requiring a long range. It is larger and heavier than the VZ-400 and VZ-1000 but can still be transported by backpack.
Leica ScanStation C10 Leica ScanStation C10 The C10 is optimized for short-range (<150 m), high-speed and high-accuracy scanning. It has several unique features compared to other instruments in our pool including a green (532 nm) laser, full overhead scanning, and lightweight internal batteries.
Optech ILRIS-3D
[retired Oct 2012]
Optech ILRIS-3D The ILRIS is a long-range scanner (up to ~1500 m) and was UNAVCO's first TLS instrument. The scanner was specially outfitted for cold weather deployment and was a tried and true instrument for polar applications. It was deployed for non-polar projects as well.

Scanner performance specifications, especially the effective scanning range, can vary significantly depending on the scanning environment. Effective range can be reduced dramatically by atmospheric contaminants such as dust, smoke and volcanic gases. Scanning is not possible in fog or rain. The effective albedo of the surface being scanned also affects range.

Please contact UNAVCO for additional information regarding project planning, proposal preparation, instrumentation and engineering support, and other TLS services; Request Support from UNAVCO if needed.

Last modified: Friday, 01-Apr-2016 22:50:41 UTC


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